Improved folding chair



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J. NIOOLAI AND J. PH. RINN, OF BOSTON, MASSACHUSETTS.

LetterslPatent No. 96,139, dated October 26, 1869 Orc- ` IMPROVED FOLDING CHAIR..

The Schedule referred to in these Letters Patent and making part of the same,

To all whom it may concern.-

Be it known that we, J. NICOLAI and J. PH. RINN, both 0f Boston, in the county of Suiiolk, and State of Massachusetts, have invented certain new and useful Improvements in Folding Chairs; and we d hereby declare that the following is a full and exact description thereof, reference being had t0 the accompanying drawings, and to. the letters of reference marked thereon.

' To enable'others skilled in the art to make and use our invention, we proceed to describe its nature, construction, and use.

The nature of our invention consists in an improvement on a. chair, described in Letters Patent, No. 71,045, granted to Nicolai, November 19, 1867, so that the folding of all parts will take place simultaneously'. Y

Drawings.

Figure 1 is a perspective view of our chair open, ready for an occupant.

Figuie 2 is an elevation of our chair as it appears folded.

We construct our chair as follows: '.'B B', fig. l, funn the back and two legs, and are framed together by means of a rung, N, and the crosspieces O and F, the upper eross-bar F being attached to the front of the pieces B B', 'while the lower crossbar 0 is attached to the back. The object of thus attaching the cross-bars O and F, is to give the back of the/chair a more desirable angle than would be obtained it both cross-bars were attached to the same side of the pieces B-B.

AA 'are two pieces, forming the rear. legs ot' a chair, and part of the arms, being connected together --by means, of a rung, N', at the lower enti-entities, and

a rung, L M, near the upper extremities. The parts A'A' are connected to the parts B B' by pivots H H'.

C C' represent the frame of the seat of the chair, which is hinged, as shown in iig. 1, to the parts B B', being otherwise supported, when thc chair is open, by the rung L M. y

P Q and l Q', figs. 1 and 2, are strong loops, made of some suitable material, and yatt-ached to the umleiside of the seat, as shown in the drawings, so that the rung L M passes through the loop thus formed. By this arrangement, the vlegs A A' and the. seat C C both move together. The outer ends 1* P' of the loops form a convenient stop for the rung L M, and give suitable rigidity.

We claim the combination of the loops P Q P' Q' with the seat C, rung'L M, and legs A A', substantially as described, and for the purpose set forth.

J. NIOOLAI. J. PH. RINN.

'itnesses:

WILLIAM Ensos, 'FRANK G. PARKER. 

